Hi Aditya
There are a couple of ways. You could either use the OpenLayers GeoJSON format
reader to read the response into features that are added to your layer:
var geojson_format = new OpenLayers.Format.GeoJSON();
var olgeo = geojson_format.read(response.responseText);
var geol = new OpenLayers.Layer.Vector("MyLayer",
{isBaseLayer: false,
styleMap: geoStyles,
rendererOptions: {zIndexing: true},
extractAttributes: true,
eventListeners: layerListeners});
geol.addFeatures(olgeo);
//All the attributes will now be properties of the features which you than
select and display
var layerListeners = {
featureclick: function(e) {
e.feature.renderIntent = "select";
e.feature.layer.drawFeature(e.feature);
alert(e.feature.attributes.wardid+"|"+e.feature.attributes.ward_no+"|"+e.feature.attributes.ward_name);
}
};
or you could parse the response within a callback function:
function mycallback(response) {
var wardid = response.responseText.features[0].properties.wardid;
var ward_no = response.responseText.features[0].properties.ward_no;
var ward_name = response.responseText.features[0].properties.ward_name;
alert(wardid+"|"+ward_no+"|"+ward_name);
}
Regards,
Robert
>>> adityakumar529 <[email protected]> 15/08/2013 12:54 a.m. >>>
Hi Users,
I am loading a layer which is coming as a result of query passed to
server. As the layer loads I want the attributes of the layer in alert.
Following is the GeoJSON layer
http://api.ichangemycity.com/readwardboundary?longitude=77.66083409999999&latitude=13.0265715.
Thanks in advance.
Aditya Kumar
-----
GIS Developer
India Urban Space Foundation
--
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